Game detection on mobile

it could be nice if the mobile app could detect what game you are playing just like the application on PC, so people see what you are playing. Overlay a little bit like messenger (Facebook), you could see a little bubble or dot appearing on the side of your screen and could just click on it and for example respond to the message or chat without really opening the mobile app so you don't have to quit your game that you are playing on your phone just to see the message or to see who joined the voice channel. It could be really nice :)